Mailbox cover with post



FIG. 1 is a top right perspective view of a mailbox cover with post showing my new design;

FIG. 2 is a top left perspective view thereof;

FIG. 3 is a bottom left perspective view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a left view thereof;

FIG. 9 is a right view thereof; and,

FIG. 10 is a cross sectional view taken along line 10-10 in FIG. 8.

The broken lines shown in the drawings represent portions of the mailbox cover with post that form no part of the claimed design. 

CLAIM The ornamental design for a mailbox cover with post, as shown and described. 